Home / 457,244.14-630,988.94-253,290.78

Finding the Fourth Proportional to 457,244.14, 630,988.94 and 253,290.78

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Solution

The fourth proportional to 457,244.14, 630,988.94 and 253,290.78 is: 349,536.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,244.14 : 630,988.94 = 253,290.78 : x
  2. Step 2: Convert to fraction form
    457,244.14/630,988.94 = 253,290.78/x
  3. Step 3: Cross multiply
    457,244.14x = 630,988.94 × 253,290.78
  4. Step 4: Simplify right side
    457,244.14x = 159,823,680,783.97
  5. Step 5: Solve for x
    x = 159,823,680,783.97/457,244.14
  6. Step 6: Final answer
    x = 349,536.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.